<!DOCTYPE HTML>
<html>
<head>
    <meta charset="utf-8">
    <title>七牛云存储上传文件</title>
</head>
<body>
    <form method="POST" action="/upload" enctype="multipart/form-data">
        Choose an image to upload:<input name="files" type="file" />
        <br />
        <input type="submit" value="Upload" />
    </form>
</body>
</html>